HN1 or HN-1 may refer to:
- HN1, a previous symbol for a human gene; the current symbol is JPT1
- HN1 (nitrogen mustard), bis(2-chloroethyl)ethylamine, a chemical warfare agent
- HN-1, a Chinese Hongniao series rocket
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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